Rebuild apidsl'd headers in cmake.

- Moved apidsl headers next to their generated versions. In the future,
  perhaps all (or most) headers will be apidsl-generated, so the sources
  should stay together.
- Try to find apidsl/apigen binary and astyle binary and use it for the
  format test. Don't run the format test if these can't be found.

1 files changed, 51 insertions, 0 deletions

diff --git a/docs/apidsl.md b/docs/apidsl.md
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+This folder contains the input file (``tox.in.h``) that has to be used to generate the ``tox.h`` api with: https://github.com/TokTok/apidsl
+
+# Minimal requirements
+
+There are some minimal requirements to contribute to ``tox.h``:
+* unix environment
+* ``astyle`` ``>=2.03``
+* [``apidsl``](https://github.com/TokTok/apidsl) (you can use provided service with curl instead)
+
+## Quick way
+
+If you want to do it quickly and you don't have time for anything other than copypasting commands, you should have ``curl`` installed.
+
+
+1. Make sure that you have ``curl`` and ``>=astyle-2.03`` installed
+2. Modify [``tox.api.h``](/toxcore/tox.api.h)
+3. Run command below ↓
+
+Command to run from ``toxcore`` directory (quick way, involves using curl):
+```bash
+# For tox.h:
+curl -X POST --data-binary @- https://apidsl.herokuapp.com/apidsl \
+  < toxcore/tox.api.h \
+  | astyle --options=other/astyle/astylerc \
+  > toxcore/tox.h
+# For toxav.h:
+curl -X POST --data-binary @- https://apidsl.herokuapp.com/apidsl \
+  < toxav/toxav.api.h \
+  | astyle --options=other/astyle/astylerc \
+  > toxav/toxav.h
+```
+
+You may want to make sure with ``git diff`` that changes made in ``tox.h`` reflect changes in ``tox.in.h``.
+
+And you're done.
+
+
+## Manually
+
+If you prefer to have more control over what is happening, there are steps below:
+
+1. Install [``apidsl``](https://github.com/TokTok/apidsl)
+2. Install ``astyle``, version 2.03 or later.
+3. Modify [``tox.api.h``](/toxcore/tox.api.h)
+4. Use ``apidsl`` ``??``
+5. Parse generated ``tox.h`` with astyle, minimal command for it would be:
+```bash
+astyle --options=other/astyle/astylerc toxcore/tox.h
+```
+
+**Always pass output from ``apidsl`` through astyle.**